Top quality duplex Stainless steel seamless stainless steel round tubes random length produce and supply
Product Description:Top quality duplex Stainless steel seamless stainless steel round tubes random length produce and supply| size | A).Out diameter: ANSI 1/8"-16"(6mm-406mm). B).Wall thickness: ANSI 5S-160S (0.9mm-30mm) |
| Manufacture Standard: | ASTM A789, ASTM A790,GOST 9941, GOST 9940, DIN17456, DIN17458, EN10216-5, EN17440, JISG3459, JIS3463, |
| Grades: | S31803, S32750,S31500 |
| Process methods: | cold dawning, cold rolling |
| Surface&Delivery condition: | Solution annealed, pickled, grey white, with plain ends/bevel edges ends |
| Length: | Max25 meters |
| Packing: | in seaworthy wooden cases or in bundles |
Min order quantity: | 1 ton |
| Delivery date: | Min. 10 days |
| Certificates: | ISO9001:2000 quality system and Mill test Certificate supplied |
Applications: decoration,building,construction,water pipe,petroleum, chemical industry, chemical fiber, smelt, medical machinery,
paper making,Heat preservation and refrigeration, mechanical equipment, food, electricity, water conservancy,
architecture, aerospace, navigation shipbuilding, environmental protection and boiler heat exchanger
| Grade | Chemical components | |||||||||
| C≤ | Mn≤ | Si≤ | S≤ | P≤ | Cr≤ | Ni | Mo | Cu≤ | N | |
| S32750(SAF2507) 00Cr25Ni7Mo4N | 0.03 | 1.20 | 0.8 | 0.020 | 0.035 | 24.0/26.0 | 6.0/8.0 | 3.0/5.0 | 0.50 | 0.24/0.32 |
| S31803(SAF2205) 00Cr22Ni5Mo3N | 0.03 | 2.00 | 1.0 | 0.020 | 0.030 | 21.0/23.0 | 4.50/6.50 | 2.50/3.50 | 0.08/0.20 | |
| S31500(3RE60) 00Cr18Ni5Mo3Siz | 0.03 | 1.2/2.00 | 1.4/2.00 | 0.030 | 0.030 | 18.0/19.0 | 4.25/5.25 | 2.50/3.00 | 0.05/0.10 | |
Duplex stainless steel tubes Mechanical properties
| Grade | σb(Mpa)≥ | σs(Mpa)≥ | δ(%)≥ | Hardness | |
| (HB) | (HRC) | ||||
| S32750(SAF2507) 00Cr25Ni7Mo4N | 800 | 550 | 15 | 310 | 32 |
| S3180.(SAF2507) 00Cr22Ni5Mo3N | 620 | 450 | 25 | 290 | 30.5 |
| S31500(3RE60) 00Cr18Ni5Mo3Siz | 630 | 440 | 30 | 290 | 30.5 |
| Quality assure: | |
| 1,Basic guarantee: | Raw material guarantee,we use the Tsingshan Brand raw material,the quality is good,adding we use the spectrum direct-reading test,our professional workers &equipments,we could guarantee the tubes is right of the clients' needs. |
| 2,Process control: | follow the process chart adding our workers' care |
| 3,Inspection& Test | Direct-reading Spectrum Instrument analytic for chemical composition, Yield Strength, Tensile Strength, Elongation, Hardness Test, Flattening Test, Flaring Test, Eddy Current Test, Ultrasonic Test, Hydrostatic Test, Corrosion Test, etc. |
Package and delivery of duplex stainless steel tubes:
Features of stainless steel tubes:
- characters such as Safety, health, environmental protection
- economy applicable, good surface
- the resistant to corrosion
- less weight than bars, thickness and out diameter so variously
- easy cutting, huge deformation,good welding and anti-pot corrosion
- tensile strengthen and good be flexible etc.